<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>我的koa应用</title>
</head>
<body>
  <div>应用首页</div>
  <div >用户：{{name}}</div>
  <button onclick="toThree()">3D页面</button>
  <a href={{href}} target="_blank">跳转</a>
</body>
<script>
  function toThree(){
    alert("去别的页面")
  }

</script>
</html>